FEATURE TOPIC：MARITIME COMMUNICATIONS IN 5G AND BEYOND NETWORKS

1. Reducing Cyclic Prefix Overhead Based on Symbol Repetition in NB-IoT-Based Maritime Communication
2. Packet Transport for Maritime Communications:A Streaming Coded UDP Approach
3. Trajectory Design for UAV-Enabled Maritime Secure Communications:A Reinforcement Learning Approach
4. Hybrid Satellite-UAV-Terrestrial Maritime Networks:Network Selection for Users on A Vessel Optimized with Transmit Power and UAV Position
5. Energy Harvesting Space-Air-Sea Integrated Networks for MEC-Enabled Maritime Internet of Things
6. Networked TT&C for Mega Satellite Constellations:A Security Perspective

COVER PAPER

1. Physical Layer Security for UAV Communications:A Comprehensive Survey

THEORIES & SYSTEMS

1. A Novel User Behavior Prediction Model Based on Automatic Annotated Behavior Recognition in Smart Home Systems
2. Configurable Virtual MIMO via UAV Swarm:Channel Modeling and Spatial Correlation Analysis
3. Cooperative Caching for Scalable Video Coding Using Value-Decomposed Dimensional Networks
4. Collaborative D2D Communication in Relay Networks with Energy Harvesting
5. A Novel Angle of Arrival Tracking Method in Large-Scale-Array Systems

EMERGING TECHNOLOGIES & APPLICATIONS

1. 5G+ABCDNETS:A Feasible Digital Framework for New Infrastructure of Smart Campus
2. Design and Implementation of a Network Performance Analysis System for Space Network Emulation Platforms
3. Polynomial-Time Assignment-Based Cell Association with Generic Utility Functions

1. GUEST EDITORIAL